In the approximate years 1902-1959, a girls' school, Ursuline Academy, stood on high ground on the southeast corner of East 165th Street and the Grand Concourse. The same congregation of religious sisters that ran the Academy of Mount Saint Ursula in Bedford Park also taught in this school.
A photograph from the New York Public Library is linked HERE.
An excellent photo of the corner site is HERE. What a staircase! I used to think of it built atop a pile of rocks.
Pope Leo XIII urged religious congregations that shared a common founder to reunite as Rome-centered groups. The Sisters of various Ursuline houses were asked whether they wished to join such a Roman Union, and the Bronxites agreed. Apparently, they needed a location for a provincialate, bought the Grand Concourse rock and created thereupon a convent and school.